HP ProBook 455 G1 Notebook PC - Manual (Page 22)

Left
Component Description
(1) Power connector Connects an AC adapter.
(2) AC adapter/Battery light ● White: The computer is connected to external
power and the battery is charged from 90 to 99
percent.
● Amber: The computer is connected to external
power and the battery is charged from 0 to 89
percent.
● Blinking amber: A battery that is the only available
power source has reached a low battery level.
When the battery reaches a critical battery level,
the battery light begins blinking rapidly.
● Off: The battery is fully charged.
(3) Vent Enables airflow to cool internal components.
NOTE: The computer fan starts up automatically to
cool internal components and prevent overheating. It is
normal for the internal fan to cycle on and off during
routine operation.
(4) External monitor port Connects an external VGA monitor or projector.
(5) RJ-45 (network) jack
RJ-45 (network) lights (2)
Connects a network cable.
● Green (left): The network is connected.
● Amber (right): The network is showing activity.
(6) HDMI port Connects an optional video or audio device, such as a
high-definition television, or any compatible digital or
audio component.
(7) USB 3.0 ports (2) Connect optional USB 3.0 devices and provide
enhanced USB power performance.
NOTE: For details about different types of USB ports,
see Using a USB device on page 45 .
12 Chapter 2 Getting to know your computer